977490 has 24 divisors (see below), whose sum is σ = 2541708. Its totient is φ = 260640.

The previous prime is 977447. The next prime is 977507. The reversal of 977490 is 94779.

It can be written as a sum of positive squares in 2 ways, for example, as 962361 + 15129 = 981^2 + 123^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

977490 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5341 + ... + 5520.

2⁹⁷⁷⁴⁹⁰ is an apocalyptic number.

977490 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

977490 is an abundant number, since it is smaller than the sum of its proper divisors (1564218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977490 is a wasteful number, since it uses less digits than its factorization.

977490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10874 (or 10871 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 977490 is about 988.6809394340. The cubic root of 977490 is about 99.2439651849.

The spelling of 977490 in words is "nine hundred seventy-seven thousand, four hundred ninety".